问一道逻辑

B.      at least as many passenger jets were produced by the division last year as had been produced in 1994

C.      since 1994, other divisions in the company have achieved reductions in hazardous waste output that are at least equal to that achieved in the passenger-jet division.

D.      The average number of weekly hours per production worker in the passenger-jet division was not significantly greater last year than it was in 1994.

E.      The number of production workers assigned to the passenger-jet division was not significantly less in 1994 than it was last year.
     

A.      the amount of nonhazardous waste generated each year by the passenger-jet division has not increased significantly since 1984

B.      at least as many passenger jets were produced by the division last year as had been produced in 1994

C.      since 1994, other divisions in the company have achieved reductions in hazardous waste output that are at least equal to that achieved in the passenger-jet division.

D.      The average number of weekly hours per production worker in the passenger-jet division was not significantly greater last year than it was in 1994.

E.      The number of production workers assigned to the passenger-jet division was not significantly less in 1994 than it was last year.
     

这道逻辑题我选B,和答案一样，后来又发现好多人争议E .所以想请教一下大家,我也糊涂了

另加一道

Often patients with ankle fractures that are stable, and thus do not
require surgery, are given follow-up x-rays because their orthopedists
are concerned about possibly having misjudged the stability of the frac-
ture. When a number of follow-up x-rays were reviewed, however, all
the fractures that had initially been judged stable were found to have
healed correctly. Therefore, it is a waste of money to order follow-up
x-rays of ankle fracture initially judged stable.

Which of the following, if true, most strengthens the argument?
A. Doctors who are general practitioners rather than orthopedists are
less likely than orthopedists to judge the stability of an ankle frac-
ture correctly.
B. Many ankle injuries for which an initial x-ray is ordered are revealed
by the x-ray not to involve any fracture of the ankle.
C. X-rays of patients of many different orthopedists working in several
hospitals were reviewed.
D. The healing of ankle fractures that have been surgically repaired is
always checked by means of a follow-up x-ray.
E. Orthopedists routinely order follow-up x-rays for fractures of bone
other than ankle bones.